Extension Source Viewer

With the Extension Source Viewer feature, modcore allows you to download and inspect the source code of Chrome extensions. Please use this functionality responsibly and in accordance with all applicable laws.

How to use the Extension Source Viewer

1. Install the modcore Extension Manager (you can find a quick setup guide here) and pin the extension to Chrome’s extensions toolbar.
   
   

2. Visit the Chrome Web Store and open any extension’s page (the URL should look like: https://chromewebstore.google.com/detail/<extension-name>/<extension-id>).
   
   

3. Right-click the modcore Extension Manager icon and select “Get CRX of this extension.”
   
   

4. Once the download is complete, go to
   https://modcoretech.github.io/extension-source-viewer/viewer.html.
   Upload the file to view and explore the extension’s source code.
   
   

The modcore Extension Source Viewer was specifically developed to ensure compatibility with the CRX files downloaded by the modcore Extension Manager. However, other tools or websites may also be able to display the contents correctly. Please note that the Extension Source Viewer is still under active development and may not yet meet all expectations—we are committed to improving it over time.

If you encounter any issues, please report them in our GitHub repository. Thank you!

Important:

• “Get CRX of this extension” works only on the Chrome Web Store and not on other platforms offering browser extensions.

• Some extensions contain protected or obfuscated source code, and you should not modify such code.